observer's pocket series observer's book of firearms / [by] Nicholas Du Quesne-Bird new observer's series new observer's book of warships / Hugh W. Cowin Soldiers of the queen cavalry observer's fighting vehicles directory observer's fighting vehicles directory, World War 2 / research and ed. by Bart Hartmannus Vanderveen observer's military vehicles directory observer's military vehicles directory from 1945 / research and ed. by Bart Harmannus Vanderveen [and] Olyslager Organisation the observers series Observers aircraft / William Green ; with silhouettes by Dennis Punnett observer's basic military aircraft directory / comp. by William Green and Gordon Swanborough army quarterly series N.A.T.O. and its prospects / J.D. Warne ; [préface par C.N. Barclay.] Commanders of the British army : Lord Kitchener Rifle volunteers : how to organize and drill them, in accordance with the latest official regulations / by Hans Busk olyslager auto library Armour on wheels to 1942 / comp. by the Olyslager Organisation ; ed. by Bart H. Vanderveen Rifle volunteers : how to organize and drill them / by Hans Busk
